Measurements. — Length of carapace : female, 

 20 mm. 



Habitat. — Sandy bottom; low-tide mark to 21 

 fathoms. 



Type locality. — [Uncertain], America. 



Known range. — Beaufort Inlet, N.C., to Corpus 

 Christi, Tex. ; through West Indies to near mouth 

 of Amazon River, Brazil; Bermuda; Cape Verde 

 Islands and Senegal to Gold Coast, West Africa. 



Remarks. — Monod (1956) reviewed the tangled 

 history of the names given this species, but 

 emended the specific name to conform to the name 

 of the donor of the type specimen, Marquis of 

 Pareto. Since Guerin used the spelling paretii 

 twice in the original description, this spelling 

 must be regarded not as a printer's error but as 

 intentional (Holthuis, personal communication). 



Ovigerous females have been taken in June in 

 North Carolina. 



Genus Lepidopa Stimpson, 1858 



Stimpson, 1858. p. 230. — Holthuis, 1960a, p. 27 (rev.). 



Lepidopa websteri Benedict 



Figure 114 



Lepidopa venusta: Kingsley, 1880, p. 410. 



Lepidopa websteri Benedict, 1903, p. 892, fig. 3.— Hay and 

 Shore, 1918, p. 415, pi. 30, fig. 12. 



Fioube 114. — Lepidopa websteri Bene- 

 dict. Animal in dorsal view, first to 

 fourth letfs of left side no) shown, 5 

 mm. indicated. 



Recognition characters. — Carapace about as 

 broad as long ; front fringed with setae, produced 

 into a short, triangular rostrum with acuminate 

 tip, and to either side of it a broadly triangular 

 lateral projection with acuminate tip slightly 

 more advanced; margin between base of rostrum 

 and each lateral projection almost straight; an- 

 terolateral angle produced into a flat spine above 

 linea anomurica; sides sinuous and slightly con- 

 vergent posteriorly, folded inward ventrally over 

 bases of legs, more or less membranous posteri- 

 orly; dorsal surface crossed near front by an 

 impressed, ciliate band with ends directed poste- 

 riorly, a narrower interrupted band ending in 

 obliquely impressed lines crossing at about middle 

 of carapace ; posterior margin concave at middle. 



Eyestalks irregularly oval, lamellate. Anten- 

 nules with peduncles exceeding eyestalks; flagella 

 straight, slender, nearly three times as long as 

 carapace, fringed with hairs, and forming a res- 

 piratory tube when approximated. Antennae in- 

 serted at extreme outer angles of front, basal 

 article stout; antennal scale reduced to a minute 

 point; flagellum stout, curved, composed of seven 

 short joints. First legs with broad, flat articles; 

 dactyl turned back on propodus to form subchela. 

 Second, third, and fourth legs with terminal joint 

 bifurcated. Fifth legs much reduced, slender, and 

 folded. 



Abdomen short and partly flexed beneath 

 thorax; second, third, and fourth segments with 

 expanded pleura. Uropods small, with slender 

 basal article, and long, oval blades, their margins 

 and those of abdominal segments fringed with 

 long, silky hairs. Telson cordate. 



Measurements. — Length of carapace: 12 mm. 



Color. — All parts white, iridescent, with pink 

 being most conspicuous tint on anterior part of 

 carapace, and blue showing along sides, in depres- 

 sions of carapace, and on extremities of fifth legs; 

 dorsal plates of abdomen faintly pink tinged, bor- 

 dered by a delicate blue green ; on either side of 

 middorsal line, pink shading into red, and blue 

 becoming deeper in shade (from note by A. 

 Shaftsbury, U.S. National Museum records). 



Habitat. — Usually found on gradually sloping 

 sand beaches of open ocean at or immediately be- 

 low low-tide mark (Pearse, Iluinin, and Wharton, 

 1942) ; shallow water, limits unknown. 



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